19463961 has 32 divisors (see below), whose sum is σ = 30643200. Its totient is φ = 10860480.

The previous prime is 19463953. The next prime is 19463981. The reversal of 19463961 is 16936491.

It is not a de Polignac number, because 19463961 - 2³ = 19463953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19463981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22780 + ... + 23618.

It is an arithmetic number, because the mean of its divisors is an integer number (957600).

Almost surely, 2^19463961 is an apocalyptic number.

19463961 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

19463961 is a deficient number, since it is larger than the sum of its proper divisors (11179239).

19463961 is a wasteful number, since it uses less digits than its factorization.

19463961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909.

The product of its digits is 34992, while the sum is 39.

The square root of 19463961 is about 4411.7979328161. The cubic root of 19463961 is about 268.9947115962.

The spelling of 19463961 in words is "nineteen million, four hundred sixty-three thousand, nine hundred sixty-one".